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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015 The Linux Foundation. All rights reserved.
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/jack.h>
#include <sound/soc.h>
#include <uapi/linux/input-event-codes.h>
#include <dt-bindings/sound/apq8016-lpass.h>
#include "common.h"
struct apq8016_sbc_data {
struct snd_soc_card card;
void __iomem *mic_iomux;
void __iomem *spkr_iomux;
struct snd_soc_jack jack;
bool jack_setup;
};
#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21)
#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17)
#define MIC_CTRL_TLMM_SCLK_EN BIT(1)
#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16))
#define DEFAULT_MCLK_RATE 9600000
static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
struct snd_soc_component *component;
struct snd_soc_card *card = rtd->card;
struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
int i, rval;
switch (cpu_dai->id) {
case MI2S_PRIMARY:
writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,
pdata->spkr_iomux);
break;
case MI2S_QUATERNARY:
/* Configure the Quat MI2S to TLMM */
writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |
MIC_CTRL_TLMM_SCLK_EN,
pdata->mic_iomux);
break;
case MI2S_TERTIARY:
writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL |
MIC_CTRL_TLMM_SCLK_EN,
pdata->mic_iomux);
break;
default:
dev_err(card->dev, "unsupported cpu dai configuration\n");
return -EINVAL;
}
if (!pdata->jack_setup) {
struct snd_jack *jack;
rval = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADSET |
SND_JACK_HEADPHONE |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3 |
SND_JACK_BTN_4,
&pdata->jack, NULL, 0);
if (rval < 0) {
dev_err(card->dev, "Unable to add Headphone Jack\n");
return rval;
}
jack = pdata->jack.jack;
snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
pdata->jack_setup = true;
}
for_each_rtd_codec_dais(rtd, i, codec_dai) {
component = codec_dai->component;
/* Set default mclk for internal codec */
rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
SND_SOC_CLOCK_IN);
if (rval != 0 && rval != -ENOTSUPP) {
dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
return rval;
}
rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
if (rval != 0 && rval != -ENOTSUPP) {
dev_warn(card->dev, "Failed to set jack: %d\n", rval);
return rval;
}
}
return 0;
}
static void apq8016_sbc_add_ops(struct snd_soc_card *card)
{
struct snd_soc_dai_link *link;
int i;
for_each_card_prelinks(card, i, link)
link->init = apq8016_sbc_dai_init;
}
static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Handset Mic", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Secondary Mic", NULL),
SND_SOC_DAPM_MIC("Digital Mic1", NULL),
SND_SOC_DAPM_MIC("Digital Mic2", NULL),
};
static int apq8016_sbc_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct snd_soc_card *card;
struct apq8016_sbc_data *data;
struct resource *res;
int ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
card = &data->card;
card->dev = dev;
card->owner = THIS_MODULE;
card->dapm_widgets = apq8016_sbc_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
data->mic_iomux = devm_ioremap_resource(dev, res);
if (IS_ERR(data->mic_iomux))
return PTR_ERR(data->mic_iomux);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
data->spkr_iomux = devm_ioremap_resource(dev, res);
if (IS_ERR(data->spkr_iomux))
return PTR_ERR(data->spkr_iomux);
snd_soc_card_set_drvdata(card, data);
apq8016_sbc_add_ops(card);
return devm_snd_soc_register_card(&pdev->dev, card);
}
static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = {
{ .compatible = "qcom,apq8016-sbc-sndcard" },
{},
};
MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
static struct platform_driver apq8016_sbc_platform_driver = {
.driver = {
.name = "qcom-apq8016-sbc",
.of_match_table = of_match_ptr(apq8016_sbc_device_id),
},
.probe = apq8016_sbc_platform_probe,
};
module_platform_driver(apq8016_sbc_platform_driver);
MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
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